Rainbow Obsidian Heart weighs between 20-40 gm and is a beautiful addition to any collection and can be a great gift for someone for Christmas, New Year or Birthday. The natural stone has a unique puffy texture that makes it stand out from other gemstones. It is perfect for healing, meditation, reiki and wicca making it a great choice for those interested in spirituality. The stone is shaped like a heart. It is a great choice for anyone interested in healing crystals, natural stones minerals or fossils.